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Cognomen Дитмар (Dietmar , Ditmar , Дитмар ) , globally, is quite a rare family name. The family name Дитмар is characteristic of Liechtenstein, where it is quite a common surname, Austria, where it is quite a rare surname, and Poland. In absolute terms, the name is most common in Poland, Germany, and Austria. Predominantly, Дитмар is the forename as well as the last name.